.arco-dropdown-list{
    height: 300px !important;
    overflow: auto;
}
.a-drawer-class .arco-btn{
    text-align: center !important;
    width: 100% !important;
}
.arco-drawer-body{

}
.back-class .bac-btn-class{
    margin-top: 0 !important;
    width: 100px;
    height: 30px !important;
    color: black !important;
    margin-left: 20px;

}
.back-class .bac-btn-class:first-child{
    border-radius: 10px !important;
}
.back-class .bac-btn-class:nth-of-type(odd)
{
    background-color: pink;
}
.back-class .bac-btn-class:nth-of-type(even)
{
    background-color: azure;
}